The Roof Units SP range of electronic fan speed controllers manufactured by Vent Axia. This range of fan speed controllers can be used with any Fan / Motor which is single phase – 240 volts and speed controllable using either 2 or 3 wire control (+earth).
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SP5001 suitable for a maximum full load of 1.7 amp
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SP5025 suitable for a maximum full load of 3 amps
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SP5050 suitable for a maximum full load of 6 amps (up to 7 amps when used as 3 wire (+earth))
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SP5010 suitable for a maximum full load of 10amps
The SP range of fan speed controllers can be used with any manufacturers fans / motors which are single phase and suitable for speed control via 2 or 3 wires (+earth) including